Mixed-martial-arts fans will get a double dose of nationally televised MMA action this coming weekend.

You just be ready for a late night.

This Saturday, Aug. 21, Showtime airs “Strikeforce: Houston” with a pair
of title fights. And early Sunday morning at 2 a.m. ET (11 p.m. PT
Saturday), HDNet presents a live broadcast of Sengoku Raiden
Championship 14 and a headliner between middleweight champ Jorge
Santiago and challenger Kazuo Misaki.

The Showtime broadcast airs at 10 p.m. ET/PT, so West Coast viewers will experience some overlap between the two broadcasts.

Sengoku Raiden Championship 14, which is the latest offering from the Japanese-based World Victory Road promotion, takes place at the Ryogoku Kokugikan in Tokyo.

In the headliner, Santiago (22-8 MMA, 6-1 SRC) fights Misaki (22-10-2 MMA, 3-2 SRC) for the second time. The fighters met at a January 2009 Sengoku Raiden Championship event to determine the organization’s first-ever middleweight champion. Misaki appeared on his way to a decision victory before Santiago secured a fight-ending rear-naked choke late in the fifth and final round.

Since that win, Santiago suffered a TKO loss to Mamed Khalidov in a non-title fight but avenged the defeat a few months later when the belt was on the line. Misaki is 1-1 with a submission win over Kazuhiro Nakamura and a TKO loss to Melvin Manhoef.

In addition to the title fight, Sengoku Raiden Championship 14 features first-round fights from the organization’s welterweight grand prix and second-round matchups in the bantamweight tourney.